Coefficient of Conservatism:
Coefficient of Wetness:
A species of the western part of North America; Michigan is close to the eastern end of its range. Thriving on Huron Mountain in Marquette Co. on sunny rock surfaces; in Ogemaw Co. of uncertain status on a hill east of St. Helen (where collected in 1967, MSC).
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 21, 2018. https://www.michiganflora.net/species.aspx?id=690.